Changing the Casing of a String
Description :
In Javascript, you can change all characters of a string to Upper Case using
the toUpperCase() function and all characters to Lower Case using the toLowerCase() function.
The original string remains unchanged and a new string is returned.
Syntax :
let changed_string = original_string.toUpperCase(); // Returns an uppercase copy of original_string
let changed_string = original_string.toLowerCase(); // Returns a lower case copy of original_string
Examples :
let str = "Cats are the best!";
let replaced = str.toUpperCase();
replaced = ??
let str = "WE WERE ON A BREAK!"
let replaced = str.toLowerCase();
replaced = ??